Add base logic for enemy buff modifiers

src/battle-phases.ts

@@ -16,7 +16,7 @@ import { EvolutionPhase } from "./evolution-phase";
 import { BattlePhase } from "./battle-phase";
 import { BattleStat, getBattleStatLevelChangeDescription, getBattleStatName } from "./data/battle-stat";
 import { Biome, biomeLinks } from "./data/biome";
-import { ModifierPoolType, ModifierType, ModifierTypeFunc, ModifierTypeOption, PokemonModifierType, PokemonMoveModifierType, TmModifierType, getPlayerModifierTypeOptionsForWave, modifierTypes, regenerateModifierPoolThresholds } from "./modifier/modifier-type";
+import { ModifierPoolType, ModifierType, ModifierTypeFunc, ModifierTypeOption, PokemonModifierType, PokemonMoveModifierType, TmModifierType, getModifierType, getPlayerModifierTypeOptionsForWave, modifierTypes, regenerateModifierPoolThresholds } from "./modifier/modifier-type";
 import SoundFade from "phaser3-rex-plugins/plugins/soundfade";
 import { BattlerTagLapseType, BattlerTagType, HideSpriteTag as HiddenTag, TrappedTag } from "./data/battler-tag";
 import { getPokemonMessage } from "./messages";
@@ -1293,7 +1293,7 @@ export class BattleEndPhase extends BattlePhase {
         pokemon.resetBattleSummonData();
     }
 
-    this.scene.clearEnemyModifiers();
+    this.scene.clearEnemyHeldItemModifiers();
 
     const lapsingModifiers = this.scene.findModifiers(m => m instanceof LapsingPersistentModifier) as LapsingPersistentModifier[];
     for (let m of lapsingModifiers) {
@@ -2171,9 +2171,7 @@ export class ModifierRewardPhase extends BattlePhase {
   constructor(scene: BattleScene, modifierTypeFunc: ModifierTypeFunc) {
     super(scene);
 
-    this.modifierType = modifierTypeFunc();
-    if (!this.modifierType.id)
-      this.modifierType.id = Object.keys(modifierTypes).find(k => modifierTypes[k] === modifierTypeFunc);
+    this.modifierType = getModifierType(modifierTypeFunc);
   }
 
   start() {
@@ -2694,7 +2692,7 @@ export class AttemptCapturePhase extends PokemonPhase {
         this.scene.getPlayerField().filter(p => p.isActive()).forEach(playerPokemon => playerPokemon.removeTagsBySourceId(pokemon.id));
         pokemon.hp = 0;
         pokemon.trySetStatus(StatusEffect.FAINT);
-        this.scene.clearEnemyModifiers();
+        this.scene.clearEnemyHeldItemModifiers();
         this.scene.field.remove(pokemon, true);
       };
       const addToParty = () => {

src/battle-scene.ts

@@ -16,7 +16,7 @@ import { GameData } from './system/game-data';
 import StarterSelectUiHandler from './ui/starter-select-ui-handler';
 import { TextStyle, addTextObject } from './ui/text';
 import { Moves, initMoves } from './data/move';
-import { ModifierPoolType, getDefaultModifierTypeForTier, getEnemyModifierTypesForWave } from './modifier/modifier-type';
+import { ModifierPoolType, getDefaultModifierTypeForTier, getEnemyModifierTypesForWave, getModifierType, modifierTypes } from './modifier/modifier-type';
 import AbilityBar from './ui/ability-bar';
 import { BlockItemTheftAbAttr, DoubleBattleChanceAbAttr, applyAbAttrs, initAbilities } from './data/ability';
 import Battle, { BattleType, FixedBattleConfig, fixedBattles } from './battle';
@@ -104,7 +104,7 @@ export default class BattleScene extends Phaser.Scene {
 	private modifierBar: ModifierBar;
 	private enemyModifierBar: ModifierBar;
 	private modifiers: PersistentModifier[];
-	private enemyModifiers: PokemonHeldItemModifier[];
+	private enemyModifiers: PersistentModifier[];
 	public uiContainer: Phaser.GameObjects.Container;
 	public ui: UI;
 
@@ -1148,7 +1148,7 @@ export default class BattleScene extends Phaser.Scene {
 		});
 	}
 
-	addEnemyModifier(itemModifier: PokemonHeldItemModifier): Promise<void> {
+	addEnemyModifier(itemModifier: PersistentModifier): Promise<void> {
 		return new Promise(resolve => {
 			itemModifier.add(this.enemyModifiers, false);
 			this.updateModifiers(false).then(() => resolve());
@@ -1206,7 +1206,7 @@ export default class BattleScene extends Phaser.Scene {
 	removePartyMemberModifiers(partyMemberIndex: integer): Promise<void> {
 		return new Promise(resolve => {
 			const pokemonId = this.getParty()[partyMemberIndex].id;
-			const modifiersToRemove = this.modifiers.filter(m => (m instanceof PokemonHeldItemModifier) && (m as PokemonHeldItemModifier).pokemonId === pokemonId);
+			const modifiersToRemove = this.modifiers.filter(m => m instanceof PokemonHeldItemModifier && (m as PokemonHeldItemModifier).pokemonId === pokemonId);
 			for (let m of modifiersToRemove)
 				this.modifiers.splice(this.modifiers.indexOf(m), 1);
 			this.updateModifiers().then(() => resolve());
@@ -1244,8 +1244,17 @@ export default class BattleScene extends Phaser.Scene {
 		});
 	}
 
-	clearEnemyModifiers(): void {
-		this.enemyModifiers.splice(0, this.enemyModifiers.length);
+	generateEnemyBuffModifier(): void{
+		const enemyBuffModifierTypes = [ modifierTypes.ENEMY_DAMAGE_BOOSTER, modifierTypes.ENEMY_DAMAGE_REDUCTION ];
+		this.executeWithSeedOffset(() => {
+			(getModifierType(Phaser.Math.RND.pick(enemyBuffModifierTypes)).newModifier() as PersistentModifier).add(this.enemyModifiers, false);
+		}, Math.floor(this.currentBattle.waveIndex / 50));
+	}
+
+	clearEnemyHeldItemModifiers(): void {
+		const modifiersToRemove = this.enemyModifiers.filter(m => m instanceof PokemonHeldItemModifier);
+		for (let m of modifiersToRemove)
+			this.enemyModifiers.splice(this.enemyModifiers.indexOf(m), 1);
 		this.updateModifiers(false).then(() => this.updateUIPositions());
 	}
 

src/data/ability.ts

@@ -2,7 +2,7 @@ import Pokemon, { HitResult, PokemonMove } from "../pokemon";
 import { Type } from "./type";
 import * as Utils from "../utils";
 import { BattleStat, getBattleStatName } from "./battle-stat";
-import { DamagePhase, PokemonHealPhase, ShowAbilityPhase, StatChangePhase } from "../battle-phases";
+import { DamagePhase, ObtainStatusEffectPhase, PokemonHealPhase, ShowAbilityPhase, StatChangePhase } from "../battle-phases";
 import { getPokemonMessage } from "../messages";
 import { Weather, WeatherType } from "./weather";
 import { BattlerTag, BattlerTagType } from "./battler-tag";
@@ -290,9 +290,9 @@ export class PostDefendContactApplyStatusEffectAbAttr extends PostDefendAbAttr {
   }
 
   applyPostDefend(pokemon: Pokemon, attacker: Pokemon, move: PokemonMove, hitResult: HitResult, args: any[]): boolean {
-    if (move.getMove().hasFlag(MoveFlags.MAKES_CONTACT) && Utils.randInt(100) < this.chance) {
+    if (move.getMove().hasFlag(MoveFlags.MAKES_CONTACT) && Utils.randInt(100) < this.chance && !pokemon.status) {
       const effect = this.effects.length === 1 ? this.effects[0] : this.effects[Utils.randInt(this.effects.length)];
-      return attacker.trySetStatus(effect);
+      pokemon.scene.unshiftPhase(new ObtainStatusEffectPhase(pokemon.scene, attacker.getBattlerIndex(), effect));
     }
 
     return false;

src/modifier/modifier-type.ts

@@ -660,6 +660,9 @@ export const modifierTypes = {
   
   GOLDEN_POKEBALL: () => new ModifierType(`Golden ${getPokeballName(PokeballType.POKEBALL)}`, 'Adds 1 extra item option at the end of every battle',
     (type, _args) => new Modifiers.ExtraModifierModifier(type), 'pb_gold', null, 'pb_bounce_1'),
+
+  ENEMY_DAMAGE_BOOSTER: () => new ModifierType('Damage Booster', 'Increases damage by 20%', (type, _args) => new Modifiers.EnemyDamageBoosterModifier(type), 'wl_item_drop'),
+  ENEMY_DAMAGE_REDUCTION: () => new ModifierType('Damage Reducer', 'Reduces incoming damage by 10%', (type, _args) => new Modifiers.EnemyDamageReducerModifier(type), 'wl_guard_spec')
 };
 
 const modifierPool = {
@@ -797,6 +800,13 @@ const trainerModifierPool = {
   ].map(m => { m.setTier(ModifierTier.MASTER); return m; })
 };
 
+export function getModifierType(modifierTypeFunc: ModifierTypeFunc): ModifierType {
+  const modifierType = modifierTypeFunc();
+  if (!modifierType.id)
+    modifierType.id = Object.keys(modifierTypes).find(k => modifierTypes[k] === modifierTypeFunc);
+  return modifierType;
+}
+
 let modifierPoolThresholds = {};
 let ignoredPoolIndexes = {};
 
@@ -860,11 +870,8 @@ export function getPlayerModifierTypeOptionsForWave(waveIndex: integer, count: i
 
 export function getEnemyModifierTypesForWave(waveIndex: integer, count: integer, party: EnemyPokemon[], poolType: ModifierPoolType.WILD | ModifierPoolType.TRAINER, gameMode: GameMode): PokemonHeldItemModifierType[] {
   const ret = new Array(count).fill(0).map(() => getNewModifierTypeOption(party, poolType).type as PokemonHeldItemModifierType);
-  if ((gameMode === GameMode.CLASSIC && waveIndex === 200) || !(waveIndex % 1000)) {
-    const miniBlackHole = modifierTypes.MINI_BLACK_HOLE();
-    miniBlackHole.id = 'MINI_BLACK_HOLE';
-    ret.push(miniBlackHole);
-  }
+  if ((gameMode === GameMode.CLASSIC && waveIndex === 200) || !(waveIndex % 1000))
+    ret.push(getModifierType(modifierTypes.MINI_BLACK_HOLE) as PokemonHeldItemModifierType);
   return ret;
 }
 

src/modifier/modifier.ts

@@ -1,5 +1,5 @@
 import * as ModifierTypes from './modifier-type';
-import { LearnMovePhase, LevelUpPhase, PokemonHealPhase } from "../battle-phases";
+import { LearnMovePhase, LevelUpPhase, ObtainStatusEffectPhase, PokemonHealPhase } from "../battle-phases";
 import BattleScene from "../battle-scene";
 import { getLevelTotalExp } from "../data/exp";
 import { PokeballType } from "../data/pokeball";
@@ -15,6 +15,7 @@ import { TempBattleStat } from '../data/temp-battle-stat';
 import { BerryType, getBerryEffectFunc, getBerryPredicate } from '../data/berry';
 import { Species } from '../data/species';
 import { BattleType } from '../battle';
+import { StatusEffect } from '../data/status-effect';
 
 type ModifierType = ModifierTypes.ModifierType;
 export type ModifierPredicate = (modifier: Modifier) => boolean;
@@ -1224,4 +1225,88 @@ export class ExtraModifierModifier extends PersistentModifier {
   getMaxStackCount(): integer {
     return 3;
   }
+}
+
+export abstract class EnemyPersistentModifer extends PersistentModifier {
+  constructor(type: ModifierType, stackCount?: integer) {
+    super(type, stackCount);
+  }
+}
+
+export class EnemyDamageBoosterModifier extends EnemyPersistentModifer {
+  constructor(type: ModifierType, stackCount?: integer) {
+    super(type, stackCount);
+  }
+
+  match(modifier: Modifier): boolean {
+    return modifier instanceof EnemyDamageBoosterModifier;
+  }
+
+  clone(): EnemyDamageBoosterModifier {
+    return new EnemyDamageBoosterModifier(this.type, this.stackCount);
+  }
+
+  apply(args: any[]): boolean {
+    (args[0] as Utils.NumberHolder).value = Math.floor((args[0] as Utils.NumberHolder).value * (1 + 0.2 * this.getStackCount()));
+
+    return true;
+  }
+
+  getMaxStackCount(): number {
+    return 5;
+  }
+}
+
+export class EnemyDamageReducerModifier extends EnemyPersistentModifer {
+  constructor(type: ModifierType, stackCount?: integer) {
+    super(type, stackCount);
+  }
+
+  match(modifier: Modifier): boolean {
+    return modifier instanceof EnemyDamageReducerModifier;
+  }
+
+  clone(): EnemyDamageReducerModifier {
+    return new EnemyDamageReducerModifier(this.type, this.stackCount);
+  }
+
+  apply(args: any[]): boolean {
+    (args[0] as Utils.NumberHolder).value = Math.floor((args[0] as Utils.NumberHolder).value * (1 - 0.2 * this.getStackCount()));
+
+    return true;
+  }
+
+  getMaxStackCount(): number {
+    return 5;
+  }
+}
+
+export class EnemyAttackStatusEffectChanceModifier extends EnemyPersistentModifer {
+  public effect: StatusEffect;
+
+  constructor(type: ModifierType, effect: StatusEffect, stackCount?: integer) {
+    super(type, stackCount);
+
+    this.effect = effect;
+  }
+
+  match(modifier: Modifier): boolean {
+    return modifier instanceof EnemyAttackStatusEffectChanceModifier && modifier.effect === this.effect;
+  }
+
+  clone(): EnemyDamageReducerModifier {
+    return new EnemyAttackStatusEffectChanceModifier(this.type, this.effect, this.stackCount);
+  }
+
+  apply(args: any[]): boolean {
+    const target = (args[0] as Pokemon);
+    if (Utils.randInt(10) < this.getStackCount())
+      target.scene.unshiftPhase(new ObtainStatusEffectPhase(target.scene, target.getBattlerIndex(), this.effect));
+
+    return true;
+  }
+
+  getMaxStackCount(): number {
+    return 5;
+  }
 }

src/pokemon.ts

@@ -8,7 +8,7 @@ import * as Utils from './utils';
 import { Type, TypeDamageMultiplier, getTypeDamageMultiplier } from './data/type';
 import { getLevelTotalExp } from './data/exp';
 import { Stat } from './data/pokemon-stat';
-import { AttackTypeBoosterModifier, PokemonBaseStatModifier, PokemonHeldItemModifier, ShinyRateBoosterModifier, SurviveDamageModifier, TempBattleStatBoosterModifier } from './modifier/modifier';
+import { AttackTypeBoosterModifier, EnemyDamageBoosterModifier, EnemyDamageReducerModifier, PokemonBaseStatModifier, PokemonHeldItemModifier, ShinyRateBoosterModifier, SurviveDamageModifier, TempBattleStatBoosterModifier } from './modifier/modifier';
 import { PokeballType } from './data/pokeball';
 import { Gender } from './data/gender';
 import { initMoveAnim, loadMoveAnimAssets } from './data/battle-anims';
@@ -636,7 +636,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     let result: HitResult;
     const move = battlerMove.getMove();
     const moveCategory = move.category;
-    let damage = 0;
+    let damage = new Utils.NumberHolder(0);
 
     const cancelled = new Utils.BooleanHolder(false);
     const typeless = !!move.getAttrs(TypelessAttr).length
@@ -690,19 +690,19 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
           applyAbAttrs(StabBoostAbAttr, source, null, stabMultiplier);
 
           if (!isTypeImmune) {
-            damage = Math.ceil(((((2 * source.level / 5 + 2) * power.value * sourceAtk / targetDef) / 50) + 2) * stabMultiplier.value * typeMultiplier.value * weatherTypeMultiplier * ((Utils.randInt(15) + 85) / 100)) * criticalMultiplier;
+            damage.value = Math.ceil(((((2 * source.level / 5 + 2) * power.value * sourceAtk / targetDef) / 50) + 2) * stabMultiplier.value * typeMultiplier.value * weatherTypeMultiplier * ((Utils.randInt(15) + 85) / 100)) * criticalMultiplier;
             if (isPhysical && source.status && source.status.effect === StatusEffect.BURN)
-              damage = Math.floor(damage / 2);
+              damage.value = Math.floor(damage.value / 2);
             move.getAttrs(HitsTagAttr).map(hta => hta as HitsTagAttr).filter(hta => hta.doubleDamage).forEach(hta => {
               if (this.getTag(hta.tagType))
-                damage *= 2;
+                damage.value *= 2;
             });
           }
 
           const fixedDamage = new Utils.IntegerHolder(0);
           applyMoveAttrs(FixedDamageAttr, source, this, move, fixedDamage);
           if (!isTypeImmune && fixedDamage.value) {
-            damage = fixedDamage.value;
+            damage.value = fixedDamage.value;
             isCritical = false;
             result = HitResult.EFFECTIVE;
           }
@@ -720,15 +720,21 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
               result = HitResult.NO_EFFECT;
           }
 
+          if (!source.isPlayer())
+             this.scene.applyModifiers(EnemyDamageBoosterModifier, false, damage);
+
+          if (!this.isPlayer())
+             this.scene.applyModifiers(EnemyDamageReducerModifier, false, damage);
+
           if (damage) {
             this.scene.unshiftPhase(new DamagePhase(this.scene, this.getBattlerIndex(), result as DamageResult));
             if (isCritical)
               this.scene.queueMessage('A critical hit!');
             this.scene.setPhaseQueueSplice();
-            damage = Math.min(damage, this.hp);
-            this.damage(damage);
-            source.turnData.damageDealt += damage;
-            this.turnData.attacksReceived.unshift({ move: move.id, result: result as DamageResult, damage: damage, critical: isCritical, sourceId: source.id });
+            damage.value = Math.min(damage.value, this.hp);
+            this.damage(damage.value);
+            source.turnData.damageDealt += damage.value;
+            this.turnData.attacksReceived.unshift({ move: move.id, result: result as DamageResult, damage: damage.value, critical: isCritical, sourceId: source.id });
           }
 
           switch (result) {

src/system/game-data.ts

@@ -274,7 +274,7 @@ export class GameData {
         }
 
         for (let enemyModifierData of sessionData.enemyModifiers) {
-          const modifier = enemyModifierData.toModifier(scene, modifiersModule[enemyModifierData.className]) as PokemonHeldItemModifier;
+          const modifier = enemyModifierData.toModifier(scene, modifiersModule[enemyModifierData.className]);
           if (modifier)
             scene.addEnemyModifier(modifier);
         }